Results 51 to 60 of about 639,860 (349)
Signal Enhancement for Magnetic Navigation Challenge Problem [PDF]
arXiv, 2020 Harnessing the magnetic field of the Earth for navigation has shown promise as a viable alternative to other navigation systems. A magnetic navigation system collects its own magnetic field data using a magnetometer and uses magnetic anomaly maps to determine the current location. The greatest challenge with magnetic navigation arises when the magnetic
arxiv
Revisiting the Biological Ramifications of Variations in Earth's Magnetic Field [PDF]
The Astrophysical Journal Letters, Volume 874, L28 (2019), 2019 An Earth-like planetary magnetic field has been widely invoked as a requirement for habitability as it purportedly mitigates the fluxes of ionizing radiation reaching the surface and the escape of neutrals and ions from the atmosphere. Recent paleomagnetic evidence indicates that the nucleation of Earth's inner core, followed perhaps by an increase in ...
arxiv +1 more source
Eos, Transactions American Geophysical Union, 2000 The study of the Earth's magnetic field is one of the oldest scientific disciplines. Research in geomagnetism enabled information to be deduced about the Earth's interior, the electrodynamics of the upper atmosphere at altitudes above 100 km, and the processes at work in interplanetary space and even on the surface of the Sun.Regular recordings of the ...
openaire +2 more sources
Orientation of Demagnetized Bees [PDF]
, 1980 The orientation of honey bee dances is affected by the earth's magnetic field. Honey bees possess localized, well-oriented, stable and superparamagnetic domains of magnetite.
Brines, M. L. +3 more
core
Search for plant biomagnetism with a sensitive atomic magnetometer [PDF]
, 2011 We report what we believe is the first experimental limit placed on plant biomagnetism. Measurements with a sensitive atomic magnetometer were performed on the Titan arum (Amorphophallus titanum) inflorescence, known for its fast bio-chemical processes ...
Bown D. +10 more
core +3 more sources
Advanced Engineering Materials, EarlyView.This study investigates the magnetic properties and microstructures of 2PM‐manufactured Ce‐containing (Nd,Pr)‐Fe‐B magnets. The addition of Nd and Dy significantly enhances coercivity by 25% and 81%, respectively, attributed to core‐shell structures.
Chi‐Chia Lin +6 more
wiley +1 more source
Advanced Functional Materials, Volume 35, Issue 13, March 25, 2025.Introducing a high density of dislocations led to an increase in photoconductivity by more than one order of magnitude in Fe‐doped SrTiO3. Detailed analysis, focusing on the quantum paraelectric state, reveals that increased photoconductivity results from a higher charge carrier generation rate due to new energy states induced by dislocations, possibly
Mehrzad Soleimany +3 more
wiley +1 more source
Variations of Particle Motion in the Van Allen Belts [PDF]
arXiv, 2023 Earth's magnetic field traps charged particles from the solar wind in the Van Allen belts. These trapped ions execute three types of motion: helical motion around magnetic field lines, longitudinal motion between North and South mirror points, and latitudinal drift motion around Earth.
arxiv
The secondary magnetic field of the Earth [PDF]
Terrestrial Magnetism and Atmospheric Electricity, 1899 The magnetic field of the earth may be regarded as that primarily due to a uniformly magnetized globe disturbed by some secondary causes. The probability that the primary field is produced by a deep‐seated system of electrical currents (whose genesis we can not explain), is increased by the fact that iron, magnetite, and basalt all become non‐magnetic ...
openaire +3 more sources
Advanced Functional Materials, EarlyView.This work investigates the Nernst effect in the Kagome magnet ErMn6Sn6 which exhibits both topological and anomalous Nernst effects with the anomalous Nernst coefficient reaching 1.71 µV K⁻¹ at 300 K. This value surpasses that of most canted antiferromagnetic materials, making ErMn6Sn6 a promising candidate for advancing thermoelectric devices based on
Olajumoke Oluwatobiloba Emmanuel +2 more
wiley +1 more source